几内亚湾南部海岸带土地利用变化与海岸线变迁的时空响应特征  

Analysis on the temporal and spatial response characteristics of land use change and coastline change in the southern coast of the Gulf of Guinea

作　　者：章晓炜 吴涛[1,2] 解雪峰[1,2] 张建珍[1] 迟永刚 查培培 ZHANG Xiaowei;WU Tao;XIE Xuefeng;ZHANG Jianzhen;CHI Yonggang;ZHA Peipei(College of Geography and Environmental Sciences,Zhejiang Normal University,Jinhua 321004,China;Collaborative Innovation Center for African Research and China Africa Cooperation Jointly Established by Zhejiang Normal University,Jinhua 321004,China)

机构地区：[1]浙江师范大学地理与环境科学学院,浙江金华321004 [2]浙江师范大学省部共建非洲研究与中非合作协同创新中心,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2023年第4期451-458,共8页Journal of Zhejiang Normal University:Natural Sciences

基　　金：浙江省自然科学基金资助项目(LY19D010007);浙江师范大学“教育部非洲研究与中非合作省部共建协同创新中心”项目(21XTFZ13B)。

摘　　要：气候变化和人类活动的干扰导致海岸带生态日趋恶化.以热带地区的赤道几内亚里奥坎波至加蓬洛佩斯角海岸带为研究区域,使用2000年、2005年、2010年、2015年和2020年的Landsat影像,对海岸线和海岸带土地利用类型变化进行了时空动态分析,并对海岸线变化与土地利用变化的相关性进行了讨论.结果显示:1)2000—2020年,海岸线在长度和空间上都有变化;2)在1 km×1 km尺度下研究区大部分地区土地利用综合指数处于低值,中高值区域主要集中于赤道几内亚境内的巴塔地区、加蓬境内的利伯维尔及让蒂尔港地区的沿海地带;3)利用灰色关联度分析后得知,加蓬境内至洛佩斯角的海岸带利用程度大于赤道几内亚部分,赤道几内亚部分处于海岸带开发初期.综上,研究区内人地矛盾并不突出,但城市发展区域过分局限于海岸地带,不利于未来可持续发展.Climate change and human activities caused the deterioration of the ecological environment of coastal zones.It was discussed the coastal zone from Rio Campo in Equatorial Guinea to Cape Lopez in Gabon in tropical regionsbased on Landsat images from 2000,2005,2010,2015,and 2020.A spatiotemporal dynamic analysis was conducted on the changes in the coastline and land use types of the coastal zone.The correlation between changes in the coastline and land use was also investigated.The results showed that:1)The coastline had changed in both length and space from 2000 to 2020;2)At a scale of 1 km×1 km,most areas in the study area had low comprehensive land use indices,while the areas with medium-high values were mainly concentrated in the coastal zones of Bata in Equatorial Guinea,Libreville in Gabon,and Port-Gentil in the region;3)By using the grey correlation analysis,it was found that the utilization degree of the coastal zone from Gabon to Cape Lopez was higher than that of the Equatorial Guinea part,which was still in the early stage of coastal development.Therefore,the conflicts between human activities and the environment in the study area were not significant,but the over-reliance on coastal zones for urban development would not be conducive to future sustainable development.

关 键 词：赤道几内亚 加蓬 海岸线变迁 土地利用 灰色关联度 

分 类 号：K903[历史地理—人文地理学]